A proposed class action lawsuit alleges that Sony Interactive Entertainment has a monopoly on digital PlayStation games. The lawsuit, as reported by Bloomberg, calls out Sony’s decision to limit digital game sales to the PlayStation Store. This practice, according to the people behind the lawsuit, allows the company to control the price of games, compared to physical games sold at retail. Some end up paying “175% more” for games on the PlayStation Store compared to retail. “Sony’s monopoly allows it to charge supracompetitive prices for digital PlayStation games, which are significantly higher than their physical counterparts sold in a competitive retail market, and significantly higher than they would be in a competitive retail market for digital games,” the people said. It’s worth noting that this is only a proposed case for now, and may not end up going through. It’s been filed with US District Court of Northern District of California (San Francisco).